<!DOCTYPE html>
<html>

<head>
  <meta charset="UTF-8">
  <title>网页标题</title>
  <script>document.write('<b>这是加粗文本</b>');</script>
</head>

<body>
  <h1>这是我的码云代码</h1>
  
  <script>document.write('内嵌文本');</script>
</body>

</html>